Armin Strom watches

Armin Strom was founded in 1967 by the watchmaker Armin Strom, who opened a shop in Burgdorf, Switzerland, where he skeletonised, engraved and decorated watches by hand. He presented his first collection under his own name at the Basel watch fair in 1984.

In 2006 the company was taken over by Serge Michel and Claude Greisler, who continue to run it from Biel/Bienne. In 2009 they presented its first in-house calibre, the ARM09. Armin Strom retired in 2011 and died in December 2024, aged 86.

The company's Mirrored Force Resonance watches use two separate balance oscillators coupled by a clutch spring so that they run in resonance.